Window-sill bolt



May 26, 1925.

F. E. HUME WINDOW SILL BOLT Filed Aug. 20, 1923 Patented May 26, 1925.

UNITED STATES FRANK E. HUME, F NEW YORK, N. Y.

WIN'DOW-SILL BOLT.

Application led August 20, 1923. Serial No. 658,204.

To all whom t may concern.'

Be it known that I, FRANK E. HUME, a citizen o-f the United States, and resident of New York city, in the county of New York and State of New York, have invented certain new and useful Improvements in Window-Sill Bolts, of which the following is a specification.

The invention relates in general to an improved means for fastening an article in position on the exposed side of a support where the opposite side is inaccessible and the invention specifically relates to a safety anchor designed to be fastened to the accessible side of a metal frame for engagement by a clip, such as is carried on the ends of safety belts, used by window cleaners.

It is understood that safety anchors of the type described are intended to resist the pull incidental to the heavy weight of the operator pulling on the same so that such devices must be well secured in place. Difflculty is experienced where it is required to mount such an anchor to a metal frame, :such as the window frames now in general ilse where the frame is entirely closed thus vpreventing access to the rear side to secure the anchor in place. Accordingly, the primary object of the present invention is to provide a simple form of safety anchor which can be mounted in position by manipulation of the fastening means entirely from the exposed, accessible side of the support.

Still another object of the invention is to provide a safety anchor, which in its application to a thin metal support will tend to reinforce the support at the point of con nection and thus tend to resist rupturing strains on the metal support.

Another object of the invention is to provide a fastening means which can be readily and quickly mounted and demounted from the support.

I attain the invention simply by drilling two apertures through the support at the outer side and inserting a hook-like or U- shaped bolt member through one kof the apertures and manipulatin the bolt until the advanced end of the bo t is passed forwardly through the other aperture. A suitable face plate is positioned on the forwardly extending ends of the bolt and secured in place by any suitable means.

Under some conditions it has been found diflicult to prevent loss of the U-bolts in installing them in position, due to the fact that the short threaded ends do not provide ample length to provide a holding of the bolt prior to the engagement therewith of the nuts.

Accordingly another object 0f the invention is to provide a temporary extension which can be utilized to hold the bolt and which can be broken off after the bolt is secured in place.

Another object of the invention is to provide a simple means for securing the nuts in locked position.

Vario-us other objects and advantages of the invention will be in part obvious from an inspection of the accompanying drawings and in part will be more fully set forth in the following particular description of one form of mechanism embodying my invention, and the invention also consists in certain new and novel features of construction and combination of parts hereinafter set forth and claimed.

In the accompanying drawings Figure l is a view in front elevation of a preferred embodiment of the invention installed in position on a support with the extensions shown in Figure 2 omitted;

Figure 2 is a transverse sectional View taken on the line 2 2 of Figure l; and

Figure 3 is a view in side elevation of the device shown in Figure l.

In the following description and in the claims, parts will be identified by specific names for convenience of expression but they are intended to be as generic in their application to similar parts as the art will permit.

In the drawings, there is shown a support 10 which may be regarded as part of a sheet metal window frame of usual construction. The frame has an outer exposed side 11 which is regarded as the accessible side and an inner inaccessible side 12.

In mounting the anchor in position the metallic support is drilled from the outer side to provide a pair of apertures 13 and 14 spaced apart a prescribed distance defined by the distance between centers of the ends 15 and 16 of a U-shaped bolt 17. The bolt is provided with a crotch portion 18 which preferably fits close against the rear side of the support. The ends of the bolt project forwardly through the apertures 13 and 14 and are tliearded. A face plate 17 is positioned over the projecting ends of the bolts and for this purpose is provided with apertures 18 and 19. Nuts 2O and 21 are threaded on the outer ends of the bolts and are turned into firm bearing engagement with the plates so as to force the same into bearing engagement with the exposed face of the support. The plate is provided with a head 22 adapted to be engaged by the clip on the safety belt. After the apertures 13 and 14 are drilled, one end of the bolt is passed through one of the apertures, say for instance, the upper aperture, and by holding the rear end of the bolt the advanced end can be worked forwardly through the other aperture. The face plate is disposed in position and the nuts tightened up until a secure permanently formed structure is attained.

Vhile the invention has been specifically described in connection with its utilization as a means for mounting the safety belt in position it will, of course, be obvious that the invention is of a more general character and may be utilized wherever it is desired to mount an object in position on an exposed accessible side of a support, the opposite side of which is not accessible.

By means of the device illustrated it is possible to mount the anchor in those positions where access is not possible to the rear side of the support. It is obvious that the side of the face plate in engagement with the support may be shaped to conform to the configuration of a part of the support engaged to the plate and the tight binding provided by the fastening means insures a construction in which strains on the head 22 are distributed over a material area of the support. It is further obvious that any tendency of the plate to turn about one of its edges is resisted by the high tensile strength inherent in bolt structures especially where the strain is along t-he length of the bolt as in the present disclosure.

In order to provide a means for holding the bolt while installing the same in position, an extension 23 is formed on one or both of the ends 15 and 16. This extension is of relatively small diameter so that it can be readily broken ofi by a hammer after the bolt is finally mounted. It is also suggested that the nuts may be locked in place by peening or otherwise upsetting the portions of the ends 15 and 16 which project beyond the nuts.

While I have shown and described, and have pointed out in the annexed claims, certain novel features of my invention, it will be understood that various omissions, substitutions and changes in the form and details of the device illustrated and in its operation may be made by those skilled in the art without departing from the spirit of the invention.

I-Iaving thus described my invention, I claim:

1. In a device of the class described, the combination with a support having an outer accessible side and an inner inaccessible side, said support provided with two apertures, a U-shaped bolt having a crotch portion engaging the rear side of the support and threaded ends extending forwardly through the apertures, a face plate provided with a head adapted to be engaged by a belt clip, said plate positioned on the outer side of the support and nuts engaging the threaded ends of the bolt and bearing on the face plate to secure the same in position.

2. In a device of the class described, the combination with a support having an outer accessible side and an inner inaccessible side, said support provided with two apertures, a U-shaped bolt insertable through one of the apertures from the accessible side of the support and adapted to be actuated from the accessible side to position the other end in the other aperture and means for securing a fastening device to the forwardly positioned ends of the bolt.

3. In a device of the class described, the combination of a support, a face plate engaging the front side thereof and provided with a clip head, plate securing means in the form of a U-bolt extending through the plate and support and provided with a partfor engaging the rear side of the support to prevent the securing means from moving forwardly, said means being insertable in place from the front side of the support.

4L. In a device of the class described, the combination of a support provided with an aperture extending therethrough, a clip head and means for securing the same in place, said means including a hook device for insertion from front to rear through said aperture thereby to engage the rear side of the support and a nut engaging the forward end of the hook device for securing the same in posi-tion.

5. An article of manufacture including a face plate provided with apertures and having a clip head projecting from the same between the apertures, a U-shaped bolt having its ends positioned in said apertures and nuts engaging threaded ends of Ithe bolt and bearing on said face plate.

6. An article of manufacture including a face piate provided with apertures and with Signed at New York city, in the county of a clip head, a U-shaped bolt having its ends New York and State of New York, this 6th positioned in said apertures and nuts enday of August A. D. 1923.

gaging threaded ends of the bolt and bear- 5 ing on said face plate, and the ends of the FRANK E' HUME bolts being upset to secure the nuts in Witness: locked position. SARA A. THORNTON. 

